Can you put hot water heaters in series?

When installing water heaters in series, the heater with the largest input (BTU or KW) should be the first heater in the series, at the cold-water inlet side of the system. Series installation draws hot water from one tank at a time. As hot water is drawn, it is taken from the last heater in the series.

How long do Weil McLain indirect water heaters last?

With proper maintenance, they are expected to last at least 15 years or longer. Weil-McLain boilers come with a 10 year non-prorated heat exchanger warranty for commercial boilers, 12 year non-prorated heat exchanger warranty for residential boilers and two year parts warranty for both categories.

What temperature should I set my hot water on demand?

The EPA recommends 120 degrees because it’s hot enough to keep diseases at bay, it’s not hot enough to cause scalding, it will supply enough hot water for most small families and is relatively energy-efficient.

What is the best setting for hot water?

120 degrees Fahrenheit
The Consumer Product Safety Commission (CPSC) recommends setting the water heater at no more than 120 degrees Fahrenheit (49 degrees Celsius) to prevent scalding. Not to mention, a water heater that is set too high can unnecessarily increase your electricity bill. Of course, every house is different.

Can you have 2 hot water heaters?

If tanks are different size or types and are not identical to each other, then connecting in series, or cold into both heaters (as shown above) are best choices. This means a 50 gallon gas and 30 gallon electric, or two different size gas, or 2 different size electric can be plumbed together without problem.

Why does my house have two hot water heaters?

In series, the water comes in to the first water heater, then passes through the second hot water heater, and finally goes to your fixtures. If you turn off the second water heater, then the water in the second one cools down between uses. This results in very long warmup times.

Is 50 degrees hot enough for hot water?

Dhw, Ideally should be at 60-65 degrees c. I see no problem with storing hot water at 50 deg. c dependant on cylinder size. If you have a particular problem on a wash hand basin etc, you could fit a blending valve.

Is 140 too hot for water heater?

120 degrees Fahrenheit is the safety recommendation against scalding, but 140° is the common default setting. Most experts agree that anything below 120 degrees creates a risk for bacteria to develop inside your water heater from stagnant water, such as legionella that causes Legionnaire’s disease.

Why would a home have 2 water heaters?

Greater efficiency can be achieved by installing multiple, smaller tankless water heaters throughout the home. Hot water is then drawn from nearby tankless appliances instead of being lead through the home’s entire plumbing system from basement to point-of-use.

Why would you need two hot water heaters?

If you have fixtures or appliances located some distance apart, it may be advisable to install two or more point-of-use on-demand water heaters to avoid unnecessary energy losses and prolonged delivery times.